Commercial Bank of Australia Ltd v Amadio

Commercial Bank of Australia Ltd v Amadio, is a seminal case in Australian contract law and equity, in which the High Court held that unconscionable dealing due to a lack of knowledge or education and the consequent imbalance in bargaining power could lead to a transaction being set aside. The case is a formative case for the defence of unconscionability, a precursor to statutory unconscionability.

Source: Wikipedia — Commercial Bank of Australia Ltd v Amadio (CC BY-SA 4.0)